Young Jin Jegal

Follow

Person

Yangsan, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for manufacturing sprocket segment
- Patent number 7,832,247
- Issue date Nov 16, 2010
- Daechang Forging Co., Ltd.
- Bum Je Cho
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and Method for Manufacturing Sprocket Segment
- Publication number 20090260410
- Publication date Oct 22, 2009
- Daechang Forging Co., Ltd.
- Bum Je Cho
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...